| 摘要 |
FIELD: manufacturing welding equipment, namely attachments for impulse feed of welding wire to welding zone. ^ SUBSTANCE: mechanism includes two clamps 1, 2 for clamping wire 3; rod 4; device for reciprocation motion of rod in axial direction; cam 8 driven to rotation by means of electric motor 9. Axis of rod 4 is arranged normally to axis of wire passing through opening 5 in mean part of rod. Device for reciprocation motion of rod is in the form of compression spring 6 secured to one end of rod 4 and carrying roller 7 in its other end. Roller 7 may engage with cam 8. Axis of cam 8 is arranged in parallel to wire passing axis. ^ EFFECT: simplified design, improved operational reliability of mechanism. ^ 2 dwg |
